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Shweta Thakur posted an Question
April 09, 2021 • 15:50 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Explain b part second (4,h,) ionization enthalpies (kj mol) of three elements i, ii, iii are g

Nor O (ii) Na or Nat ii) Bet or Mg* (iv) I or IF Of ener A d irst (4,H4) and the second (4,H,) ionization enthalpies (kJ mol) of three elements I, II, III are given below: II II h A,H A,H2 Identity the element which is likely to be (a) non-metal (b) an alkali metal (c) an alkaline earth metal. 7. Predict which atom in each of the following nairc hac tha 403 549 1142 be a 2640 1060 2080 h

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    Priyanshu kumar Best Answer

    (a) II is an alkaline earth metal (b) I is an alkali metal (c) III is a non-metal Ist is alkali metal as see the second ionisation energy IE2 is very high and you know in case of alkali metal there is one valence electrons in s subshell and after removal of this 1 electrons there is configuration of nearest noble gas which is stable so requires large ionisation energy for removal of electrons. IInd is alkaline earth metal as you know first thing is that successive ionization energy goes on increasing so this is the case and in alkaline earth metal there is 2 s electrons . IIIrd is non metal as you know ionisation energy increases from left to right in a period and maximum for grp 18 elements and with respect to 1st and 2nd see 1st ionisation energy is maximum for 3rd so it is non metal

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    Dinesh khalmaniya 1 best-answer

    solution- Generally concept- left to right in a period IP increase and down the group decrease. so IP order alkali metals < alkaline earth metals < p blocks. compair the values of Ist IP.

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  • Suman Kumar best-answer

    I is alkali metal. II is alkaline earth metal

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    III is non metal. see the increase for I: it has most increase . For II the increase is less

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